Power quality enhancement of UPQC by employing fuel cell unit for a three phase system [articol]

Abstract

This research work depicts the addition of Unified Power Quality Conditioner (UPQC) with the Fuel cell system for enhancing the power quality at the main side irrespective of type of generation. This work reports the various power quality issues normally occurred in a distribution system. How successfully overcome the voltage sag, voltage swell, unbalanced load issues, reduction of harmonic content with UPQC described here. Usage of different industrial loads causes numerous types of voltage unbalances and severe effect on performance. The conditions which are created in the distribution system follow the magnitude of parameters yields to unsymmetrical sag and swells. The effective working of UPQC with fuel cell under different conditions is simulated and the expected outcome is achieved. This distinguished method presents a UPQC for remunerating power quality conditions for three phase system that incorporates DC/DC converter contribute by a fuel cell at the DC link. The suitable series-shunt controller is engaged for managing the UPQC under linear, non-linear load conditions is also monitored. The functioning of the presented method is simulated in MATLAB interface